Mets outfielder Carlos Beltran, whose past several seasons have been hampered by nagging injuries, had a successful outing Monday, managing to get through a spring training workout without crumbling into a pile of dust and dying. “It was one of his best days in years, because he was still breathing and alive by the end,” Mets manager Terry Collins said during a press conference, adding that he was amazed with Beltran’s ability to pump blood from his heart to other parts of his body for a whole session of batting practice.